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            <h2 class="title" style="clear: both"><a id="envset_message_stream"></a>DbEnv::set_message_stream()</h2>
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      <pre class="programlisting">#include &lt;db_cxx.h&gt;

void DbEnv::set_message_stream(class ostream*); </pre>
      <p>
            There are interfaces in the Berkeley DB library which either
            directly output informational messages or statistical
            information, or configure the library to output such messages
            when performing other operations. For example, the
            <a class="xref" href="envset_verbose.html" title="DbEnv::set_verbose()">DbEnv::set_verbose()</a>
            and
            <a class="xref" href="envstat.html" title="DbEnv::stat_print()">DbEnv::stat_print()</a>
            methods.
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         The <code class="methodname">DbEnv::set_message_stream()</code> and
         <a class="xref" href="dbset_message_stream.html" title="Db::set_message_stream()">Db::set_message_stream()</a>  
         methods are used to display these messages for the application. In this case, 
         the message will include a trailing <code class="literal">&lt;newline&gt;</code> character.
    </p>
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            Setting <span class="bold"><strong>stream</strong></span> to NULL unconfigures the interface.
    </p>
      <p>
            Alternatively, you can use the
            <a class="xref" href="envset_msgfile.html" title="DbEnv::set_msgfile()">DbEnv::set_msgfile()</a> or
            <a class="xref" href="dbset_msgfile.html" title="Db::set_msgfile()">Db::set_msgfile()</a> methods
            to display the additional information via a C Library <code class="literal">FILE *</code>,
            or the <a class="xref" href="envset_msgcall.html" title="DbEnv::set_msgcall()">DbEnv::set_msgcall()</a> 
            and <a class="xref" href="dbset_msgcall.html" title="Db::set_msgcall()">Db::set_msgcall()</a>
            methods to capture the additional error information in a way that does not use either
            output streams or C Library <code class="literal">FILE *</code>'s.
            You should not mix these approaches.
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      <p>
            The <code class="methodname">DbEnv::set_message_stream()</code> method configures 
            operations performed using the specified <a class="link" href="env.html" title="Chapter 5.  The DbEnv Handle">DbEnv</a>
            handle, not all operations performed on the underlying database environment.
    </p>
      <p>
         The <code class="methodname">DbEnv::set_message_stream()</code> method may be called at any time during the
         life of the application.
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      <div class="sect2" lang="en" xml:lang="en">
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              <h3 class="title"><a id="idp7554872"></a>Parameters</h3>
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                <h4 class="title"><a id="idp7555064"></a>stream</h4>
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          <p>
                             The <span class="bold"><strong>stream</strong></span> parameter is the
                             application-specified output stream to be used for additional message
                             information.
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              <h3 class="title"><a id="idp7541880"></a>Class</h3>
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                <a class="link" href="env.html" title="Chapter 5.  The DbEnv Handle">DbEnv</a>  
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              <h3 class="title"><a id="idp7549112"></a>See Also</h3>
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                     <a class="xref" href="env.html#envlist" title="Database Environments and Related Methods">Database Environments and Related Methods</a> 
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